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[76.183.134.35]) by smtp.gmail.com with ESMTPSA id r26sm3106167ooh.32.2021.07.22.12.14.38 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 22 Jul 2021 12:14:39 -0700 (PDT) From: Chris Morgan To: linux-rockchip@lists.infradead.org Cc: linux-pm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, maccraft123mc@gmail.com, sre@kernel.org, heiko@sntech.de, robh+dt@kernel.org, lee.jones@linaro.org, Chris Morgan Subject: [RFC 1/4] dt-bindings: Add Rockchip rk817 battery charger support Date: Thu, 22 Jul 2021 14:14:27 -0500 Message-Id: <20210722191430.28203-2-macroalpha82@gmail.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210722191430.28203-1-macroalpha82@gmail.com> References: <20210722191430.28203-1-macroalpha82@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org From: Chris Morgan Create dt-binding documentation to document rk817 battery and charger usage. New device-tree properties have been added. - rockchip,resistor-sense: The value in microohms of the sample resistor. - rockchip,sleep-enter-current: The value in microamps of the sleep enter current. - rockchip,sleep-filter-current: The value in microamps of the sleep filter current. Signed-off-by: Chris Morgan --- .../devicetree/bindings/mfd/rk808.txt | 35 +++++++++++++++++-- 1 file changed, 33 insertions(+), 2 deletions(-) diff --git a/Documentation/devicetree/bindings/mfd/rk808.txt b/Documentation/devicetree/bindings/mfd/rk808.txt index 23a17a6663ec..fa42b6253d26 100644 --- a/Documentation/devicetree/bindings/mfd/rk808.txt +++ b/Documentation/devicetree/bindings/mfd/rk808.txt @@ -70,13 +70,37 @@ Optional RK817 properties: - vcc8-supply: The input supply for BOOST - vcc9-supply: The input supply for OTG_SWITCH + - codec: The child node for the codec to hold additional properties. If no additional properties are required for the codec, this node can be omitted. - -- rockchip,mic-in-differential: Telling if the microphone uses differential +- rockchip,mic-in-differential: Telling if the microphone uses differential mode. Should be under the codec child node. +- battery: The child node for the charger to hold additional properties. + If a battery is not in use, this node can be omitted. If a + battery node is used, the following values are required: + rockchip,resistor-sense, rockchip,sleep-enter-current, + rockchip,sleep-filter-current, and a phandle to a + monitored-battery node that contains a valid value for + charge-full-design-microamp-hours, + charge-term-current-microamp, + constant-charge-current-max-microamp, + constant-charge-voltage-max-microvolt, + voltage-max-design-microvolt, voltage-min-design-microvolt, + and a valid ocv-capacity table. +- rockchip,resistor-sense: Value in microohms of the battery sense resistor. + The PMIC only supports values of either 10000 or + 20000. This value is used by the driver to set + the correct divisor value to translate ADC readings + into the proper units of measure. +- rockchip,sleep-enter-current: Value in microamps of the sleep enter current + for the charger. Value is used by the driver + to calibrate the relax threshold. +- rockchip,sleep-filter-current: Value in microamps of the sleep filter current + for the charger. Value is used by the driver + to derive the sleep sample current. + Optional RK818 properties: - vcc1-supply: The input supply for DCDC_REG1 - vcc2-supply: The input supply for DCDC_REG2 @@ -459,6 +483,13 @@ Example: }; }; + rk817_battery: battery { + monitored-battery = <&battery_cell>; + rockchip,resistor-sense = <10000>; + rockchip,sleep-enter-current = <300000>; + rockchip,sleep-filter-current = <100000>; + }; + rk817_codec: codec { rockchip,mic-in-differential; };